Stadion: Court 4 Round: 14 Ground: Hardcourt outdoor
| ITF - M15 - St. Petersburg | 2021/04/16 07:55 | Matic Spec v Alexey Zakharov | 6-2,6-4 |
| ITF - M15 - St. Petersburg | 2021/04/15 09:45 | Constantin Bittoun Kouzmine v Alexey Zakharov | 4-6,4-6 |
| ITF - M15 - St. Petersburg | 2021/04/14 09:55 | Egor Noskin v Alexey Zakharov | 2-6,6-1,2-6 |
| ITF - M15 - St. Petersburg | 2021/04/08 10:45 | Sarp Agabigun v Alexey Zakharov | 6-2,6-4 |
| ITF - M15 - St. Petersburg | 2021/04/07 07:00 | Naoki Tajima v Alexey Zakharov | 3-6,6-1,3-6 |
| ITF - M15 - Kazan | 2021/03/13 08:00 | Alexey Zakharov v Alibek Kachmazov | 7-5,6-3 |
| ITF - M15 - Kazan | 2021/03/12 09:05 | Alexey Zakharov v Alexandr Binda | 6-2,7-6 |
| ITF - M15 - Kazan | 2021/03/11 08:00 | Alexey Zakharov v Yaraslav Shyla | 6-3,6-2 |
| ITF - M25 - Nur-Sultan | 2021/07/08 07:30 | Andrey Kuznetsov v Yan Bondarevskiy | 6-3,6-2 |
| ITF - M25 - Nur-Sultan | 2021/07/07 04:00 | Yan Bondarevskiy v Egor Novikov | 6-4,6-4 |
| ITF - M15 - Shymkent | 2021/06/06 04:00 | Yan Bondarevskiy v Edoardo Lavagno | 7-5,2-6,3-6 |
| ITF - M15 - Shymkent | 2021/06/05 05:00 | Yan Bondarevskiy v Ivan Gakhov | 7-6,6-4 |
| ITF - M15 - Shymkent | 2021/06/04 07:00 | Yan Bondarevskiy v Aleksandre Metreveli | 6-4,7-5 |
| ITF - M15 - Shymkent | 2021/06/03 09:30 | Denis Yevseyev v Yan Bondarevskiy | 2-6,6-3,1-6 |
| ITF - M15 - Shymkent | 2021/06/02 11:45 | Petr Bar Biryukov v Yan Bondarevskiy | 3-6,2-6 |
| ITF - M15 - Shymkent | 2021/05/28 05:00 | Yan Bondarevskiy v Edoardo Lavagno | 3-6,4-6 |